Remove FWL_WGTHITTEST_* defines in favour of enum class.

xfa/fwl/core/fwl_widgetimp.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef XFA_FWL_CORE_FWL_WIDGETIMP_H_
 #define XFA_FWL_CORE_FWL_WIDGETIMP_H_
 
 #include "core/fxcrt/include/fx_coordinates.h"
 #include "core/fxcrt/include/fx_system.h"
 #include "xfa/fwl/core/cfwl_event.h"
 #include "xfa/fwl/core/cfwl_themepart.h"
 #include "xfa/fwl/core/ifwl_widgetdelegate.h"
+#include "xfa/fwl/core/include/fwl_widgethit.h"
 #include "xfa/fwl/theme/cfwl_widgettp.h"
 
 class CFWL_AppImp;
 class CFWL_MsgKey;
 class CFWL_WidgetImpProperties;
 class CFWL_WidgetMgr;
 class IFWL_App;
 class IFWL_DataProvider;
 class IFWL_ThemeProvider;
 class IFWL_Widget;
@@ skipping 25 matching lines @@
                                  uint32_t dwStylesExRemoved);
   virtual uint32_t GetStates();
   virtual FWL_ERR SetStates(uint32_t dwStates, FX_BOOL bSet = TRUE);
   virtual FWL_ERR SetPrivateData(void* module_id,
                                  void* pData,
                                  PD_CALLBACK_FREEDATA callback);
   virtual void* GetPrivateData(void* module_id);
   virtual FWL_ERR Update();
   virtual FWL_ERR LockUpdate();
   virtual FWL_ERR UnlockUpdate();
-  virtual uint32_t HitTest(FX_FLOAT fx, FX_FLOAT fy);
+  virtual FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy);
   virtual FWL_ERR TransformTo(IFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy);
   virtual FWL_ERR TransformTo(IFWL_Widget* pWidget, CFX_RectF& rt);
   virtual FWL_ERR GetMatrix(CFX_Matrix& matrix, FX_BOOL bGlobal = FALSE);
   virtual FWL_ERR SetMatrix(const CFX_Matrix& matrix);
   virtual FWL_ERR DrawWidget(CFX_Graphics* pGraphics,
                              const CFX_Matrix* pMatrix = NULL);
   virtual IFWL_ThemeProvider* GetThemeProvider();
   virtual FWL_ERR SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
   virtual FWL_ERR SetDataProvider(IFWL_DataProvider* pDataProvider);
   virtual IFWL_WidgetDelegate* SetDelegate(IFWL_WidgetDelegate* pDelegate);
@@ skipping 91 matching lines @@
  public:
   CFWL_WidgetImpDelegate();
   ~CFWL_WidgetImpDelegate() override {}
   int32_t OnProcessMessage(CFWL_Message* pMessage) override;
   FWL_ERR OnProcessEvent(CFWL_Event* pEvent) override;
   FWL_ERR OnDrawWidget(CFX_Graphics* pGraphics,
                        const CFX_Matrix* pMatrix = NULL) override;
 };
 
 #endif  // XFA_FWL_CORE_FWL_WIDGETIMP_H_